Ecological and Evolutionary Consequences of Biological Invasion and Habitat Fragmentation

Hoffmeister, Thomas S.; Vet, Louise E. M.; Biere, Arjen; Holsinger, Kent E.; Filser, Juliane

doi:10.1007/s10021-003-0138-8

Cited by 74 publications

(51 citation statements)

References 94 publications

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“…As has been claimed in other domains of study (Hoffmeister, Vet, Biere, Holsinger, and Filser, 2005), more work is urgently required to gain insights into how the modification and fragmentation of landscapes shape the evolutionary processes associated with population change. The failure to do so will prevent researchers from discovering causal explanations that explain how change occurs within a complex system involving mechanisms of variation, selection, and retention (or inheritance) (Hodgson, 2003).…”

Section: Resultsmentioning

confidence: 99%

Using old concepts to gain new insights: addressing the issue of consistency

Jones

2007

Management Decision

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Purpose of the paper: This paper aims to go beyond a bookkeeping approach to evolutionary analysis whereby surviving firms are better adapted and extinct firms were less adapted. From discussion of the preliminary findings of research into the Hobart pizza industry, evidence is presented of the need to adopt a more traditional approach to applying evolutionary theories with organizational research.Methodology/Approach: After a brief review of the relevant literature, the preliminary findings of research into the Hobart pizza industry are presented. Then, several evolutionary concepts that are common place in ecological research are introduced to help explain the emergent findings. The paper concludes with consideration given too advancing a more consistent approach to employing evolutionary theories within organizational research. Findings:The process of selection can not be assumed to occur evenly across time and/or space. Within geographically small markets different forms of selection operate in different ways and degrees requiring the use of more traditional evolutionary theories to highlight the causal process associated with population change.Research Implications: The paper concludes by highlighting Geoffery Hodgson's Principle of Consistency. It is demonstrated that a failure to truly understand how and why theory is used in one domain will likely result in its misuse in another domain. That at present, too few evolutionary concepts are employed in organisational research too ensure an appreciation of any underlying causal processes through which social change occurs.What is the original/value of paper: The concepts introduced throughout this paper, whilst not new, provide new entry points for organizational researchers intent of employing an evolutionary approach to understand the process of social change.

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Section: Resultsmentioning

confidence: 99%

Using old concepts to gain new insights: addressing the issue of consistency

Jones

2007

Management Decision

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“…5,6). A detailed review of the plants most affected by habitat fragmentation is beyond the scope of this paper (see Henle et al 2004), but in general they include species that require frequent regeneration from seed, lack clonal or vegetative reproduction, have low natural abundance, depend on mutualistic relationships with a small number of pollinators or seed dispersers for reproduction, lack sexual self-compatibility, and occur in restricted or specialised habitats (Davies et al 2000;Hobbs and Yates 2003;Marvier et al 2004;Hoffmeister et al 2005).…”

Section: Loss Of Landscape Connectivitymentioning

confidence: 99%

Why non-native grasses pose a critical emerging threat to biodiversity conservation, habitat connectivity and agricultural production in multifunctional rural landscapes

et al. 2017

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Context Landscape-scale conservation planning is key to the protection of biodiversity globally. Central to this approach is the development of multifunctional rural landscapes (MRLs) that maintain the viability of natural ecosystems and promote animal and plant dispersal alongside agricultural land uses. Objectives We investigate evidence that non-native grasses (NNGs) in rangelands and other low-intensity agricultural systems pose a critical threat to landscape conservation initiatives in MRLs both in Australia and globally.Methods We first establish a simple socio-ecological model that classifies different rural landscape elements within typical MRLs based on their joint conservation and agro-economic value. We then quantify the impacts of eight Australian NNGs (Andropogon gayanus, Cenchrus ciliaris, Eragrostis curvula, Hyparrhenia hirta, Nassella neesiana, Nassella trichotoma, Phalaris aquatica and Urochloa mutica) on different landscape elements and then classify and describe the socio-ecological transformations that result at the MRL scale. Results Our data indicate that two broad classes of NNGs exist. The first reduces both conservation and agro-economic value ('co-degrading' species) of invaded landscapes, while the second improves agroeconomic value at the expense of conservation value ('trade-off' species). Crucially, however, both classes cause hardening of the landscape matrix, agricultural intensification, reduced habitat connectivity, and the loss of multi-value land use types that are vital for landscape conservation. Conclusions NNGs drive socio-ecological transformations that pose a growing threat to landscape-scale connectivity and conservation initiatives in Australia and globally. There is an urgent need for further research into the impacts of NNGs on habitat connectivity and biodiversity within multifunctional landscapes, and the socio-ecological goals that can be achieved when landscape transformation and degradation by these species is unavoidable.Electronic supplementary material The online version of this article

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“…The alteration of land-use patterns has resulted in the fragmentation of habitats, ecosystems, and landscapes in most parts of the world, and several theoretical explorations indicate that spread rates are affected by habitat fragmentation (Hoffmeister et al, 2005;Perrings et al, 2010). In fragmented habitats very specialized species or those species with poor dispersal ability may suffer more than generalistic and invasive species.…”

Section: Habitat Fragmentationmentioning

confidence: 99%